The specs for this game jam are quite loosely defined, but basically the point is to make a game or app in two weeks with fantasy console specs at 240 x 135 px resolution, 10 colour palette, 7 control buttons and TIA like audio capabitilies.
The palette:
https://lospec.com/palette-list/ltro-1
The site has a lot of much nicer palettes (https://lospec.com/palette-list/), but the previous one seems to be required for the jam.